Appendix A. RS-232 Communications Protocol

RS-232 Configuration

Commands Transmitted to the Ventilator

Transmission of Data from the Ventilator

Ventilator Report

Command and

Response (VRPT)

The ventilator will allow for the transmission of data from the ventilator via the RS-232 communications interface. The ventilator receives commands from the remote device and responds with fixed format records.

The RS-232 communications port will be configured in the following manner for all communications functions:

•Baud Rate 19,200

•Data Bits 8

•Parity None

•Stop Bits 1

Commands are transmitted as a series of four ASCII characters followed by a carriage return. Valid commands will be stored and response transmissions will be sent in the order the corresponding commands were received. Invalid commands will be returned in an error message (Table A-7: “Unrecognized Commands” on page A-24),in sequence with all other commands.

Unless stated otherwise, all fields will be left justified and six (6) characters in length. A comma will separate each field. Each data transmission shall be terminated with a carriage return.

In the following subparagraphs, a space is designated as “◆”. When data is unavailable, the output field shall contain “----◆◆” (i.e. four dash characters

followed by two spaces).

When the ventilator receives VRPT followed by a carriage return, it will respond by transmitting the information shown in Table A-1: “Ventilation Report”. The ventilator responds to the VRPT command by returning a string with a variable length. Fields 2 through 4 define the length of the message. The last character transmitted is a stop code indicating the end of the message. The second field indicates the number of characters between the start and stop codes. The third field indicates the number of fields between the start and stop codes. The fourth field is the start code, 0x02. The last field in the string is the stop code, 0x03.

REF 1057983 A

Respironics V200 Ventilator Operator’s Manual

Appendix A-1

V200 specifications

The Philips V200 is a robust mobile device that combines functionality with sleek design, catering to users who prioritize efficiency and modern technology. This smartphone is engineered to provide a seamless user experience, integrating advanced features and specifications that enhance daily activities.

One of the standout features of the Philips V200 is its vibrant display. The device boasts a large, high-resolution screen that renders visuals with stunning clarity and color accuracy. This makes it an excellent choice for multimedia consumption, whether you're watching videos, playing games, or viewing photos. The touchscreen interface is smooth and responsive, allowing for effortless navigation across applications.

Under the hood, the Philips V200 is powered by a reliable processor, ensuring fast performance and multitasking capabilities. With ample RAM, users can run multiple applications simultaneously without experiencing lag, making it suitable for both work and leisure. This processing power is complemented by substantial internal storage, providing enough space for apps, photos, videos, and other essential files.

Connectivity is another highlight of the Philips V200. It supports various networks and is equipped with 4G LTE capabilities, ensuring users stay connected at high speeds wherever they go. Bluetooth and Wi-Fi functionalities also enhance connectivity options, allowing easy sharing of files and media between devices.

The camera system on the Philips V200 is designed to cater to photography enthusiasts. With a high-resolution rear camera and a secondary front camera, users can capture stunning images and selfies. The device also includes several camera features such as portrait mode and various filters, making photography more enjoyable and creative.

The Philips V200 places significant emphasis on battery life, with a long-lasting battery that ensures all-day usage. Users can rely on the device for extended periods without the need for frequent charging, which is particularly useful for those with busy lifestyles.

In terms of software, the Philips V200 runs on a user-friendly operating system that provides access to a plethora of applications and services. The user interface is intuitive, making it easy for users to customize their devices according to their preferences.

Overall, the Philips V200 stands out in the competitive smartphone market by offering a well-rounded package of features, performance, and design. It is a practical choice for anyone seeking a reliable and stylish mobile device that can handle both everyday tasks and more intensive applications with ease. Whether you are a professional, a student, or simply someone who enjoys technology, the Philips V200 is engineered to meet diverse needs.

Philips V200 Appendix A. RS-232 Communications Protocol, Ventilator Report Command Response Vrpt

Models: V200